7.21. Review Questions

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Key Terms

accessor method (getter) 230

class 214

class abstraction 239

class encapsulation 239

class's contract 239

composition 240

constant 224

constructor 216

data field encapsulation 229

default constructor 216

dot operator (.) 217

immutable class 232

instance 214

instance method 217

instance variable 217

instantiation 214

mutator method (setter) 230

null 220

no-arg constructor 216

object-oriented programming (OOP) 214

Unified Modeling Language (UML) 215

package-private (or package-access) 228

private 228

public 228

reference variable 237

reference type 216

stack 234

static method 224

static variable 224

this keyword 236